Hope your doing well
I am using new c# experimental option.I found studio some new bug or error i don’t know about this.
I am facing this fourth time.
Steps to Reproduce Error:
1)Create new Library
2)Next Rename new activity to Test and here file moving down
3)We can design our process and it is running local through studio working fine.
4)Publish your process custom in local folder.
5) After project refresh test.xaml file is removing we can’t find entire system.